Why the Yankees-Red Sox rivalry is so big

Before the MLB London Series between the New York Yankees and Boston Red Sox, we look at why the two teams' rivalry is so big.

Pictures courtesy of MLB.

WATCH MORE: Six brilliant catches from the 2018 MLB season

Watch both Yankees-Red Sox games live on the BBC Sport website and app from 18:00 BST on Saturday, 29 June and 15:00 BST on Sunday, 30 June.

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